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This commit is contained in:
matst80
2026-06-28 17:51:52 +02:00
parent 7db0d236c7
commit aa8b2bdedc
84 changed files with 4328 additions and 2344 deletions
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pkg/cart/tax_test.go
+24 -42
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@@ -11,28 +11,29 @@ func TestNordicTaxProvider_Name(t *testing.T) {
}
}
func TestNordicTaxProvider_ComputeTax(t *testing.T) {
func TestNordicTaxProvider_Compute(t *testing.T) {
// taxRate is basis points (2500 = 25%).
tests := []struct {
total int64
taxRate int
want int64
desc string
}{
{0, 25, 0, "zero total"},
{1250, 25, 250, "25 % VAT on 1250"},
{1000, 20, 166, "20 % VAT on 1000"},
{1200, 25, 240, "25 % VAT on 1200"},
{25000, 25, 5000, "25 % VAT on 25000"},
{100, 10, 9, "10 % VAT on 100"},
{100, 100, 50, "100 % VAT on 100"},
{0, 2500, 0, "zero total"},
{1250, 2500, 250, "25 % VAT on 1250"},
{1000, 2000, 167, "20 % VAT on 1000"},
{1200, 2500, 240, "25 % VAT on 1200"},
{25000, 2500, 5000, "25 % VAT on 25000"},
{100, 1000, 10, "10 % VAT on 100"},
{100, 10000, 50, "100 % VAT on 100"},
{100, 0, 0, "zero-rate"},
{100, -1, 0, "negative rate -> zero"},
}
for _, tt := range tests {
p := NewNordicTaxProvider("SE")
got := p.ComputeTax(tt.total, tt.taxRate)
got := p.Compute(tt.total, tt.taxRate)
if got != tt.want {
t.Errorf("ComputeTax(%d, %d) [%s] = %d; want %d", tt.total, tt.taxRate, tt.desc, got, tt.want)
t.Errorf("Compute(%d, %d) [%s] = %d; want %d", tt.total, tt.taxRate, tt.desc, got, tt.want)
}
}
}
@@ -43,12 +44,12 @@ func TestNordicTaxProvider_DefaultTaxRate(t *testing.T) {
want int
desc string
}{
{"SE", 25, "Sweden"},
{"NO", 25, "Norway"},
{"DK", 25, "Denmark"},
{"FI", 25, "Finland"},
{"", 25, "empty -> default SE"},
{"DE", 25, "unknown -> fallback SE"},
{"SE", 2500, "Sweden"},
{"NO", 2500, "Norway"},
{"DK", 2500, "Denmark"},
{"FI", 2550, "Finland (25.5%)"},
{"", 2500, "empty -> default SE"},
{"DE", 2500, "unknown -> fallback SE"},
}
for _, tt := range tests {
p := NewNordicTaxProvider("SE")
@@ -59,22 +60,22 @@ func TestNordicTaxProvider_DefaultTaxRate(t *testing.T) {
}
}
func TestStaticTaxProvider_ComputeTax(t *testing.T) {
func TestStaticTaxProvider_Compute(t *testing.T) {
p := NewStaticTaxProvider()
tests := []struct {
total int64
taxRate int
want int64
}{
{1250, 25, 250},
{25000, 25, 5000},
{1000, 20, 166},
{0, 25, 0},
{1250, 2500, 250},
{25000, 2500, 5000},
{1000, 2000, 167},
{0, 2500, 0},
}
for _, tt := range tests {
got := p.ComputeTax(tt.total, tt.taxRate)
got := p.Compute(tt.total, tt.taxRate)
if got != tt.want {
t.Errorf("ComputeTax(%d, %d) = %d; want %d", tt.total, tt.taxRate, got, tt.want)
t.Errorf("Compute(%d, %d) = %d; want %d", tt.total, tt.taxRate, got, tt.want)
}
}
}
@@ -86,25 +87,6 @@ func TestStaticTaxProvider_DefaultTaxRate(t *testing.T) {
}
}
func TestComputeTax(t *testing.T) {
tests := []struct {
total int64
taxRate int
want int64
desc string
}{
{1250, 25, 250, "canonical: 25 %"},
{25000, 25, 5000, "25k with 25 %% -> 5k tax"},
{0, 25, 0, "zero total"},
}
for _, tt := range tests {
got := ComputeTax(tt.total, tt.taxRate)
if got != tt.want {
t.Errorf("ComputeTax(%d, %d) [%s] = %d; want %d", tt.total, tt.taxRate, tt.desc, got, tt.want)
}
}
}
func TestTaxProviderImplementsInterface(t *testing.T) {
var p TaxProvider = NewNordicTaxProvider("SE")
_ = p